/* Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.googlecode.gwt.crypto.gwtx.io;

/**
 * Closeable represents the source or destination of some data which can be
 * called its close method to release resources it holds.
 */
public interface Closeable {
	
	/**
	 * Close the object and release any system resources it holds. If the object
	 * has been close, then invoke this method has no effect.
	 * 
	 * @throws IOException
	 *             if any error raises when closing the object.
	 */
	public void close() throws IOException;
}